结论: 豨莶草抗血栓有效组分以二萜类成分为主.Conclusion: Diterpenoids were main compounds in the antithrombotic fraction of Herba Siegesbeckiae.目的: 探讨丹参二萜醌对邻苯三酚自氧化反应产生的氧自由基的作用.Object : To observe the oxygen derived free radicals scavenging of...
In 1971, the 1p and 2p decimal coins were introduced in Britain.英国于1971年开始使用十进制的1便士和2便士硬币。The telephone booths accept 10 and 20 pence coins.电话亭可使用10便士和20便士的硬币。Coin-operated telephones took 100, 200 and 500 lire coins.投币电...